William Culver, MD
NPI 1598747826ActiveIndividual· Allergy & Immunology· Fort Collins, CO
Allergy & Immunology (MD) in Fort Collins, Colorado, trained at University of Colorado School of Medicine, Denver (class of 1972). Their prescriptions cost Medicare Part D more than their services did: $490,843 for 831 claims, against $29,631 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 17 companies reporting payments in 2025, $1,624 in all, mostly food and beverage.
Overview
| NPI | 1598747826 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 14, 2005 |
| Last updated in NPPES | Oct 18, 2023 |
| Certified by provider | Oct 18, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 18320 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Allergy/Immunology (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 154 |
|---|---|
| Services billed | 2,216 across 17 procedure codes |
| Paid by Medicare | $29,631 |
Part D prescriptions in 2024
| Prescriptions (claims) | 831 · 1,358 30-day fills |
|---|---|
| Patients | 147 |
| Total drug cost | $490,843 |
| Generic share | 62% of claims |
Education and affiliations
| Medical school | University of Colorado School of Medicine, Denver |
|---|---|
| Graduation year | 1972 |
| Medicare specialty | Allergy/Immunology |
Medical group
- Allergy Partners of Colorado, PCFort Collins, CO · 6 clinicians
Hospital affiliation
- Banner North Colorado Medical CenterGreeley, CO
Industry payments (Open Payments)
- 2025$1,624 · 77 payments from 17 companies
- 2024$1,899 · 101 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $405.03 | 19 |
| Regeneron Healthcare Solutions, Inc. | $279.19 | 15 |
| Genzyme Corporation | $158.11 | 8 |
| Glaxosmithkline, LLC. | $121.68 | 6 |
| Amgen Inc. | $85.40 | 3 |
What the 2025 payments were for
- Food and Beverage$1,583 · 75 payments
- Education$40.77 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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